Following up on a previous post about stalling and intermittent missing on
2000 Impala 3.8.
The DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency.
MAF Sensor looks clean, throttle body is dirty and Idle Air Control is
really dirty...I mean covered in black oil...I took everything apart and
cleaned them up the best I could...Do you think that a Dirty IAC might be
sticking enough to bypass enough air around the MAF to cause a DTC P0102 ?
The MAF is upstream of the IAC, regardless of what the IAC is or
isn't doing, there is no way that it could cause air to bypass
the MAF sensor.
For intake air to bypasss the MAF, there would have to be a leak
in the intake duct, dipstick not installed, breather tube not
installed, PCV valve loose, leaking or not installed, vacuum
leak, etc. Otherwise known as false air.
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